Tel：+86-533-4658877 E-mail : 1279411331@qq.com

NEWS CENTER

2022

What causes the submersible sand pumping pump to produce less water?

When the submersible sand pumping pump is in the head, it may be because it is too high. When using an electric pump in a high lift area, the flow rate is relatively small and the unit efficiency is very low. Therefore, the sand pumping pump should be selected according to the range of use in the head to appropriately reduce its use of the head or choose a submersible pump of suitable specifications.

It may be caused by the wrong direction of the impeller. For a general centrifugal water pump, if it runs in the opposite direction, the electric pump will also produce water, but the water production is much smaller than normal operation, which will directly cause the submersible pump to fail to work normally. The treatment method is to disassemble and check the water pump and remove the debris in the impeller and pump body flow channel.

The impeller or pump cover of the submersible sand pumping pump is worn. The wear of the impeller mainly occurs in the mouth ring (sealing ring) part. The normal clearance of this part is between 0.15-0.2 mm. If the clearance of this part becomes large, a large amount of water will be leaked, thereby reducing the flow of the electric pump. If it is used for a long time, it will also wear out, resulting in reduced water flow. The treatment method is to disassemble the sewage pump in stainless steel, repair or replace the impeller and pump cover.

The blockage of the filter screen of the sand pump will cause the water inlet to be blocked, resulting in very little water output. As long as the debris such as aquatic plants around the electric pump grid (filter screen) is removed, the flow rate of the electric pump is generally expected to return to normal. Of course, sometimes after the debris at the electric pump grid is cleaned up, the flow rate is still very small. At this time, it is necessary to disassemble the pump part of the electric pump and check whether the flow channel part of the impeller is blocked. If there is any blockage, the flow will only be normal after it needs to be removed.

It may be because the depth of the submersible sand pumping pump is not enough, or the pump has been dehydrated, which will also cause the pump to fail to work normally. Local dehydration will deteriorate the heat dissipation and treatment methods of the submersible pump. The diving depth of the submersible sand pumping pump can be adjusted so that it is always immersed in the water during operation, which can not only ensure the normal operation of the submersible pump, but also help the heat dissipation of the submersible pump.

The water discharged from the sand pumping pump contains too many solid impurities or has too high viscosity, which will cause the submersible pump to overload. The treatment method is to properly adjust the working position of the submersible sand pumping pump or choose another submersible non-clogging sewage pump of suitable specifications.